1.7 x 9 = 633 x 2 = 62 x 8 = 166 x 4 = 248 x 2 = 16
2.4 x 7 = 283 x 1 = 35 x 9 = 458 x 4 = 323 x 2 = 6
3.6 x 9 = 541 x 6 = 69 x 7 = 638 x 6 = 483 x 6 = 18
4.4 x 6 = 240 x 3 = 02 x 2 = 46 x 6 = 361 x 3 = 3
5.6 x 9 = 544 x 2 = 83 x 6 = 185 x 3 = 152 x 4 = 8
6.8 x 9 = 723 x 8 = 245 x 3 = 157 x 4 = 282 x 4 = 8
7.2 x 2 = 44 x 8 = 323 x 4 = 129 x 9 = 813 x 7 = 21
8.6 x 8 = 486 x 8 = 480 x 4 = 05 x 5 = 256 x 4 = 24
9.9 x 8 = 725 x 1 = 56 x 1 = 67 x 8 = 567 x 7 = 49
10.1 x 5 = 58 x 6 = 487 x 8 = 569 x 3 = 274 x 9 = 36
11.3 x 1 = 38 x 4 = 323 x 9 = 278 x 8 = 643 x 3 = 9
12.5 x 4 = 205 x 7 = 355 x 8 = 406 x 3 = 187 x 7 = 49
13.5 x 8 = 409 x 4 = 368 x 7 = 569 x 4 = 367 x 3 = 21
14.6 x 7 = 428 x 5 = 403 x 5 = 155 x 2 = 102 x 5 = 10
15.6 x 5 = 306 x 2 = 122 x 7 = 142 x 0 = 03 x 3 = 9
16.4 x 5 = 204 x 3 = 120 x 5 = 06 x 7 = 421 x 1 = 1
17.2 x 9 = 188 x 9 = 724 x 8 = 329 x 2 = 187 x 5 = 35
18.6 x 3 = 184 x 3 = 129 x 5 = 459 x 5 = 457 x 5 = 35
19.9 x 6 = 542 x 9 = 187 x 2 = 140 x 7 = 04 x 6 = 24
20.9 x 7 = 634 x 7 = 289 x 6 = 549 x 9 = 815 x 2 = 10

answers to this test: jakeholland.net/multest.php?vals=0-9&op=mul&seed=1164471271&answer

random multiplication test: /multest.php?vals=0-9&op=mul
random division test: /multest.php?vals=0-9&op=div
random addition test: /multest.php?vals=0-9&op=add
random subtraction test: /multest.php?vals=0-9&op=sub